Plasma waveguide band elimination filter based on diamond structure

The utility model provides a plasma waveguide band elimination filter based on a rhombus structure, which comprises metal layers arranged on the upper side and the lower side of a transverse waveguide, at least one rhombus resonant cavity is arranged in the metal layer on one side of the transverse waveguide, and at least one rectangular resonant cavity is arranged in the metal layer on the other side of the transverse waveguide; the symmetric center of the transverse waveguide, the symmetric center of the rhombic resonant cavity and the symmetric center of the rectangular resonant cavity correspond to each other and are located on the same horizontal line. 本实用新型提供一种基于菱形结构的等离子体波导带阻滤波器，包括：设置在横向波导的上下两侧的金属层，所述横向波导一侧的金属层内设置有至少一个菱形谐振腔，所述横向波导另一侧的金属层内设置有至少一个矩形谐振腔；所述横向波导的对称中心、所述菱形谐振腔的对称中心与所述矩形谐振腔的对称中心相对应，并位于同一水平线上。